#include <bits/stdc++.h>
using namespace std;
int n,l,ans;
int a[100010],h[100010];
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1; i<=n; i++){
        cin>>a[i];
        h[a[i]]++;
        l=max(l,a[i]);
    }
    for(int i=1; i<=l; i++) ans=max(ans,h[i]);
    cout<<ans<<endl;
    return 0;
}